dexter



Nb Model.) 4 Sheets-Sheet 1;

I T, C. DEXTER.

PAPER REGISTERING MACHINE.

No. 551,923. Patented Dec. 24, 1895.

. M N I NHIIIIMHH E M t ilg II 2: 3 r [I I; a i w I hill. w e? h m 1'liiIWi l TfiniC (No Model.) 4 Sheets-Sheet 2.

T. O. DEXTER.

PAPER REGISTERING MACHINE. No. 551-,923. Patented Dec. 24, 1895.

. WITNESSES: V

4 ATTORNEY (No Model.) 4 Sheets-Sheet 3.

T. O. DEXTER. PAPER REGISTERING MACHINE.

No. 551,923. Patented Dec. 24, 1895.

WITNESSES: INVENTOR WW, M Q ATTOifY (No Modl.) v 4 Sheets-Sheet 4,

} T. 0. DEXTER. PAPER REGISTERING MACHINE.

No. 551,923. Patented 1360.24, 1895.

' Illlil 1 Him? ssEs= W $43M? f W A ATTORNEY ANDREW EGRAHAM.PHO'TO-UTHD.WASHINEYON.D C

UNITED STATES I PATENT OFFICE.

TALBOT C. DEXTER, OF PEARL RIVER, ASSIGNOR TO THE DEXTER FOLDER COMPANY,OF NEW YORK, N. Y.

PAPER-REGISTERING MACHINE.

SPECIFICATION forming part of Letters Patent No. 551,923, dated December24, 1895.

Application filedAugust 13 1894.

To all whom it may concern:

Be it known that I, TALBOT C. DEXTER, of Pearl River, in the county ofRockland, in the State of New York, have invented new and usefulImprovements in Paper-Registering Machines, of which the following,taken in connection with the accompanying drawings, is a full, clear,and exact description.

This invention relates to devices employed for automatically registeringsheets of paper fed to paper-folding machines or other machinesrequiring a proper adjustment of the alignment of the sheets in relation.to the folding-rollers or other mechanisms designed to operate on saidsheets.

The object of my present invention is to effect said registering bysimple and efficient mechanism combined with electrically-operatedappliances and without depending on the stiifness of the sheet forcontrolling the electric circuit, thus rendering my present inventioncapable of accurately registering very thin and light paper, and alsosheets which may be fed to the machine in a wavy condition; and to thatend my present invention consists in a novel organization of thepaper-registering machine hereinafter de scribed, and set forth in theclaims.

In the annexed drawings, Figure 1 is aplan view of a paper-registeringmachine embodying my invention. Fig. 2 is a vertical transverse sectionon line X X in Fig. 1. Fig. 3

is a side elevation of my invention. Fig. 4

is a transverse section on line V V in Fig. 2.

3 5 Fig. 5 is a horizontal longitudinal section on line Z Z in Fig. 6.Fig. 6 is a vertical longitudinal section on line Y Y in Fig. 5. Fig.

7 is an enlarged elevation of the circuit making and breaking devices,and Fig. 8 is aver- 4o tical section on line WV W in Fig. 7

Similar letters of reference indicate corresponding parts.

A represents the main frame of a paperfolding machine.

R R designate the rollers which receive the paper between them and foldsaid sheet, and B is the end gage which arrests the longitudinalmovement of the paper fed to the folding-machine in the usual andwell-known 5o manner. In striking said end gage the sheet of paperbecomes straightened, so as to lie Serial No. 520,152. (No model.)

with its advance edge parallel with the folding-rollers, and thenrequires only to be shifted laterally to register with the subsequentsuccessive lines of foldings. For this purpose I have devised thefollowing improved electrically-controlled automatic registeringmachine,the paper-shifting mechanism of which is in this case represented of theform similar to that illustrated in my prior application for Patent,Serial No. 476,580, filed June 5, 1893. I do not, however, limit mypresent invention to its connection with such specific paper-shiftingmechanism, inasmuch as my said invention is adapted to be used inconnection with any paper-shifting mechanism the operation of which iscontrolled electromagnetically.

The chief feature of novelty of my present invention resides in thedevices for applying frictional bearings on one marginal portion of thesheet while said sheet is being drawn from said bearings by thepaper-shifting mechanism engaging the opposite margin of the sheet, thesheet being thereby subjected to sufficient tension to stretch it into auniform plane, and thus allowing the registering to be accuratelyaccomplished with very thin and light paper as well as thicker paper.

The invention also consists in a novel m-anv ner of utilizing the saiddevices for making and breaking the electric circuit and therebycontrolling the action of the paper-shifting mechanism; and theinvention furthermore. consists in certain novel features of the detailsof the registering-machine, all of which I will now describe.

The paper-shifting mechanism, as shown, consists of the arm 0, which ismounted on a rigid horizontal supporting-bar D extending at right anglesfrom the side of the frameA. To the free end of this is pivoted axiallyat right angles to the folding-rollers R R the supplemental arm a, whichin turn has pivoted to its free end the roller 1). The pivoted end ofthe arm a is bifurcated and formed with an outwardly-projecting heel a,as more clearly shown in Figs. 5 and 6 of the drawings. On the pivot-pinof said arm in the. bifurcation thereof is loosely mounted thearmaturedever c, which is provided with a lug c, by which it normallybears on theheel a. From the arm 0 rises a post 0, to which are attachedthe electromagnets I I, which when energized to attract the aforesaidarmature, causes the lug c to depress the heel a and consequently liftthe free end of the supplemental arm with the roller b pivoted theretofor the purpose hereinafter explained.

Across the arm 0 and j ournaled therein is a shaft d, to one end ofwhich is fastened a miter-pinion d, meshing with a similar pinion emounted on a rock-shaft e. The shaft d has projecting from it a lug d,which bears on the heel a of the supplemental arm a for the purpose offurther lifting said arm to freely admit the paper under the roller 1).Said rock-shaft extends completely across the machine for the purposehereinafter explained. It is supported at its ends in bearings c mountedon the frame A, and is supported at its center by a bearing e attachedto a crossbar secured at opposite ends to posts mounted on top of theframe A. Said rock-shaft receiyes its motion from a rotary cam E,deriving motion from the driving-gears of the folding-machine bysuitable gearings, which obviously vary in form and disposition with thevarious forms of the folding-machine, and therefore need not be shown inthis case. The motion of the rock-shaft is transmitted by means of thelever F, pivoted intermediate its length to the frame A and provided atone end with a roller F, which is held in contact with the cam E by thespring-actuated rod f. The opposite end of said lever is connected by apitman G to a crank H attached to-theend of the rock-shaft e. Directlyunder the roller 1) is another roller b in the same verticalplane andmounted on a shaft g journaled in bearings fixed to the under side ofthe supporting-bars D. This roller receives positive rotary motion bymeans of a miterpinion 9, attached to the shaft g, and meshing with acorresponding pinion h, attached to the shaft, h, which has also securedto it a pulley '6 connected by an endless. belt 1" to a p lleyj attachedto the shaft j of the cam E hereinbefore referred to.

The paper gripping and releasing actions of the described paper-shiftingmechanism are controlled by the electric circuit making and breakingdevices consisting essentially of two contacts or terminals receivingbetween them the margin of the paper directly opposite the aforesaidpaper-shifting mechanism and caused to bear on the paper during thelateral withdrawal thereof from between the contacts. The interpositionof, the paper breaks the circuit and the aforesaid withdrawal of thepaper from between the contacts closes the circuitand the energies ofthe magnets II are thus controlled. It is obviousthat the detailconstruction of said circuit maker and breaker is susceptible ofnumerousmodifications, and therefore I do not limit myself spe cificall'y inthat respect. My preferred construction, however, is as follows: Onrigid horizontal ways secured to the frame A at the side directlyopposite the paper-shifting mechanism and extending toward the same areparallel ways L, on which rides a post P, which is provided at its basewith a nut N disposed axially parallel with the ways and receivingthrough it the screw-rod N, journaled in the side of the frame A, andprovided with a wrench or handle wheel by which to turn it so as to movethe post toward or from the paper-shifting mechanism according to thesize of the sheet to be registered. From the foot of the post extends ashort distance toward the paper-shifting mechanism a plate P, to whichis secured the electrical contact or terminal Z, which is sustainedimmediately under the path of the paper. From the top of the postextends an, arm P, which is over the plate P, and sliding vertically init is a pin 1, which constitutes the other terminal of the electriccircuit maker and breaker. Said pin is supported, and moved verticallyby a lever a, pivoted to the post and engaging by its free end the underside of a collar 0", attached to the upper end of the pin, as moreclearly shown in Fig. 7 of the drawings. The opposite end of said leverhas projecting from it a lug n, upon which bears a lug p, attached tothe hereinbefore-described rockshaft 6, whereby the levern is caused tointermittently lift the pin or terminal Z to admit between it and thesubjacent terminal 1 the sheet fed to the folding-machine.

The operation of, registering the sheets is as follows: During themovement of the sheet to the end gage B, the rock-shaft e lifts theupper roller 1) and pin Z to permit the sheet to freely pass undersaidparts. The movement of the rock-shaft is so timed as to allow saidroller and pin to drop onto the sheet after its forward movement hasbeen arrested by contact with the end gage B. The lower roller 1) beingin constant rotation andfaced with rubber on its periphery, and theupper roller being an idler or revoluble independently and pressing thesheet down-onto the lower roller causes the frictional hold thereof todraw the sheet laterally. The two contactsor terminals being in themeantime insulated from eachother by the interposition of the paperbreaks the electric circuit, the battery of which is represented at S.As soon asthe paper is withdrawn from between said terminals the upperterminal Z drops into contact with the lower terminal Z and therebycloses the circuit which immediately energizes the What I claim as myinvention is- 1. A paper-registering machine comprising an end-gagearresting the longitudinal movement of the sheet, lateral paper-shiftingmechanism engaging one of the side margins of the arrested sheet,electro-magnets throwing said mechanism out of its operative position,and a circuit controller receiving between its terminals the oppositemarginal portion of the sheet arrested by the end-gage and therebybreaking the circuit, and by the lateral withdrawal of the sheet fromsaid terminals closing the circuit and thereby energizing the aforesaidmagnets.

2. In combination with the end gage, laterally moving paper-shiftingmechanism engaging one of the marginal portions of the sheet,electro-magnets throwing said mechanism out of operative position, acircuit maker and breaker having one of its contacts immediately underthe opposite marginal portion of the sheet, and the other contactmovable to and from the top of the sheet, and mechanism lifting thelatter contact intermittently to admit the sheet between the contacts asset forth.

3. A paper-registering machine comprising a laterally movingpaper-shifting mechanism having one of its paper-engaging membersmovable to and from one of the marginal portions of the paper,sheet-gripping devices normally engaging the opposite marginal portionof the paper, a rock-shaft extending across the machine, a lug on saidshaft throwing one of the paper-engaging members of the sheet-grippingdevices from the paper to release the same and mechanism transmittingmotion from the rock-shaft to the paper-shifting mechanism to throw thelatter-out of operative position as set forth.

4. In combination with the paper-shifting mechanism having a verticallymovable member engaging one of the marginal portions of the sheet andelectro-magnets throwing said mechanism out of engagement, a stationaryelectric terminal under the path of the opposite margin of the sheet, avertically movable electric terminal over the stationary terminal incircuit with the aforesaid magnets, a rockshaft extending across themachine, and mechanisms actuated by said rock-shaft and simultaneouslylifting both the movable member of the paper-shifting mechanism and themovable terminal to admit the sheet under said parts as set forth.

5. In combination with the frame -A- and electrically controlledpaper-shifting mechanism engaging one of the margins of the paper,horizontal ways supported on the fram e opposite the aforesaidshifting-mechanism and extending toward the same, apost mounted movablelongitudinally on said Ways and provided with a nut axially parallelwith the ways, an adjusting screw journaled in the frame and working insaid nut, and two electric terminals carried on the post and adapted toreceive between them and bear on and release the paper, and mechanismlifting the upper terminal intermittently from the path of the paper asset forth.

In testimony whereof I have hereunto signed my name this 25th day ofMay, 1894.

V TALBOT O. DEXTER. [L. s.]

Witnesses:

JoHN J. LAASS, O. L. BENDIXON.

